This high-powered drone not usually associated with sewer systems is Mcome County, Michigan's answer to preventing scenes like this. A grim prospect for residents threatened by this massive sinkhole. Christmas Eve 2016, a sinkhole the size of a football field started when an 11t wide sewer line located 45 ft below ground burst, spilling raw sewage under the neighborhood and triggering the sinkhole.what was arguably the largest infrastructure disaster in Michigan history. More than 20 homes evacuated with at ...